அனைத்துத் தயாரிப்புகள் ஆதரவு மன்றம்

My current Theme is Dark Fox. But, previously my backgrounds and menus were all white and easy to read. Now for some reason they're black and difficult for me to deal with.

How do I reset to white and sync them on all my devices?

An automatic update of Firefox which resulted in a "quit/create new profile" choice has removed all my bookmarks

Of the four profiles stored in "about:profile" three are identical (ie. have only the default bookmarks stored) and one, generates a "quit/create new profile" message.

The "bookmarksbackup" folder (in /home/user/.Mozilla/Firefox/zs1jki8t.default) is empty.

The "import/backup" option (in Manage Bookmarks) offers nothing to choose. There is no 'list of dated automatic backups.'

Firefox did not create an "Old Firefox Data" folder on the desktop.

Browser privacy "strict". "Never remember history" was selected.

Running Firefox in Manjaro (Linux)

Help.

All of a sudden I can no longer access a website that I have visited a million times before. I get an error message stating...

The page isn’t redirecting properly

Firefox has detected that the server is redirecting the request for this address in a way that will never complete.

   This problem can sometimes be caused by disabling or refusing to accept cookies.

I have cleared cookies/cache and all that achieves is that I can get to the website's log in page but then straight back to the same error message. I'm so frustrated as this is a website I need to access for my work.

I can get to it no problem on my phone so it appears to be a Firefox issue. I don't want to use another browser as I get on well with firefox but I fear I may have to as this is too important a website to be without.

Any help would be appreciated - thank you, Nat